Home / 808,769.80-1,213,413.90-542,830.60

Finding the Fourth Proportional to 808,769.80, 1,213,413.90 and 542,830.60

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Solution

The fourth proportional to 808,769.80, 1,213,413.90 and 542,830.60 is: 814,419.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,769.80 : 1,213,413.90 = 542,830.60 : x
  2. Step 2: Convert to fraction form
    808,769.80/1,213,413.90 = 542,830.60/x
  3. Step 3: Cross multiply
    808,769.80x = 1,213,413.90 × 542,830.60
  4. Step 4: Simplify right side
    808,769.80x = 658,678,195,385.34
  5. Step 5: Solve for x
    x = 658,678,195,385.34/808,769.80
  6. Step 6: Final answer
    x = 814,419.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.